CVE-2018-18607
Published: 23 October 2018
An issue was discovered in elf_link_input_bfd in elflink.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31. There is a NULL pointer dereference in elf_link_input_bfd when used for finding STT_TLS symbols without any TLS section. A specially crafted ELF allows remote attackers to cause a denial of service, as demonstrated by ld.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
binutils Launchpad, Ubuntu, Debian |
bionic |
Released
(2.30-21ubuntu1~18.04.3)
|
| cosmic |
Ignored
(end of life)
|
|
| disco |
Not vulnerable
(2.32-7ubuntu4)
|
|
| eoan |
Not vulnerable
(2.32-8ubuntu1)
|
|
| focal |
Not vulnerable
(2.32-8ubuntu1)
|
|
| groovy |
Not vulnerable
(2.32-8ubuntu1)
|
|
| hirsute |
Not vulnerable
(2.32-8ubuntu1)
|
|
| impish |
Not vulnerable
(2.32-8ubuntu1)
|
|
| jammy |
Not vulnerable
(2.32-8ubuntu1)
|
|
| kinetic |
Not vulnerable
(2.32-8ubuntu1)
|
|
| lunar |
Not vulnerable
(2.32-8ubuntu1)
|
|
| mantic |
Not vulnerable
(2.32-8ubuntu1)
|
|
| trusty |
Needed
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.26.1-1ubuntu1~16.04.8+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
|
Patches: upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=102def4da826b3d9e169741421e5e67e8731909a |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |